PPU blocks. Spring block and polyurethane foam. What filler for upholstered furniture to choose? Durability of different sofas

When buying a sofa or an armchair, you pay attention to their appearance and are not interested in the internal content - The internal filling of sofas and armchairs is not simple - Fillers for upholstered furniture- The interior filling of sofas and armchairs can be varied - PPU - Spring blocks - Independent springs - Various transformation mechanisms - Mattress

Furniture polyurethane foam - PPU

Polyurethane foam (furniture foam rubber, abbreviated as polyurethane foam) is one of the most common flooring materials for the production of upholstered furniture and mattresses. is a foamed, spongy material obtained by mixing several synthetic polymers. The peculiarity of modern polyurethane foams is extremely high physical and mechanical properties, surpassing all types of rubbers and rubbers in some parameters. Today's market offers a very wide range of different brands. foam rubber: standard, increased rigidity and hard, soft and super soft, highly elastic. Each of the types foam rubber differs in its quality characteristics and has its own purpose in the manufacture of upholstered furniture.

Polyurethane foam (PPU)- high-volume material with a porous structure. It is used in a variety of applications - as a seat base for theater chairs and driver's seats. Polyurethane foams are also used as a filler for the production of upholstered furniture as well as in spring mattresses, and independently in springless mattresses. Seats sofas and armchairs from furniture foam quite elastic, easily restore their original shape. Sitting on such a sofa is comfortable, it adapts to the shape of the body, and it is easy to get up from it. Due to its qualities polyurethane foam is one of the most popular fillers for upholstered furniture.

Foam rubber purchased for the products of our furniture factory Alina, produced on Norwegian (LAADER BERG AS) and German (FECKEN-KIRFEL and ALBRECHT BAUMER) equipment. Quality of the produced foam rubber achieved through automation production process and high-precision dosing of components. Strict adherence to production technology and a quality control system, as well as high qualifications of personnel and high-quality raw materials from leading manufacturers, make it possible to achieve the most positive characteristics of foam rubber, which makes it competitive.

Upholstered furniture filler - PPU (furniture foam rubber)- not only has a low cost, but also unique properties, which in turn determine its popularity:
* the possibility of transformation, various rigidity, reliability, durability.

Besides, for furniture foam there are also many other important properties to which attention should be paid. They are mainly associated with direct effects on humans. PPU (furniture foam rubber):
* does not contain substances that cause allergies, does not accumulate or emit dust, does not grow moldy, safe for human and animal health.

All used polyurethane foam meet the world standards of hygiene, treated with antibacterial, antiviral and antifungal composition.

Equipment and industrial lines for the production of polyurethane foam - for familiarization with the customers of furniture products (note !!! the factory "Alina Furniture" is not a manufacturer of polyurethane foam, but only uses it as an internal filler in the manufacture of upholstered furniture)

So, polyurethane foam is a high-tech filler for upholstered furniture, which is characterized by increased strength and durability. By its structure, polyurethane foam consists of microscopic thin-walled cells filled with air. The properties of elasticity and resilience are determined by the fact that the volume of air in the total volume of the material exceeds 98%. For the production of foam rubber of any type, special polyols, melamine, fire retardants are used in the formulation so that the physical and mechanical parameters (density, stiffness, cell size, elasticity, tensile strength, air permeability, permanent deformation, relative elongation) meet the requirements of the Consumer.

Furniture with polyurethane foam fillingcharacterized by increased strength and durability

V furniture production various brands of foam rubber are used with high rates strength. They are used as filling sofas, armchairs and other types upholstered furniture, which provides an increase in the comfort of the models.

Each brand of PPU has its own purpose. As a rule, different brands of foam rubber are used in combination with each other. Some are for parts of furniture that do not bear the main load: backs of sofas, armchairs, armrests. Others - for places of moderate loads during the operation of furniture. Still others are for use in conjunction with transformation mechanisms, etc.

Furniture factory Alina uses mainly dense, highly elastic grades. All brands polyurethane foam we use are safe, non-allergenic and dust-free. These foam rubber has a hygienic certificate from the Ministry of Health, which allows its use in the furniture industry.

Foam rubber the brands used also have a high degree of "air permeability". With the correct use of these brands, this indicator indicates the possibility long term operation, good ventilation of the products and the relative comfort and durability of the products. Quality indicators are steadily maintained under long-term cyclic loads, which significantly increases the service life of the furniture. They have good sound-absorbing and insulating properties.

Furniture polyurethane foam is a hygienic material that, when proper care and will last for a long time, so you do not have to worry about the durability of your upholstered furniture.

Sintepon

Sintepon(in common parlance, sintipon or sentipon, sintepon or cintepon). What it is? What is he? Why is there so much talk about him? Is it good or bad? Is it harmful to health or not? Sintepon- is an environmentally friendly elastic material with a high degree of elasticity. The synthetic winterizer is used as a filler in the production of upholstered furniture - sofas, armchairs, poufs - to give the seats and backs an angular relief while maintaining acceptable softness and comfort. The synthetic winterizer does not lend itself to oxidation by atmospheric oxygen for a long time. The synthetic winterizer is moisture resistant and does not absorb moisture into the fiber structure.

Sintepon is a three-dimensional non-woven fabric made of polyester fiber. According to the method of joining fibers, it can be thermally bonded and glued. Sintepon- an elastic-elastic material, used as a filler in the furniture industry in the production of upholstered furniture, serves to give it relief and softness. Sintepon- a flooring material of solid acrylic fibers arranged in parallel strands. Usually a layer of padding polyester is covered with furniture foam rubber - PPU.

Sintepon is one of the most affordable fillers. Its development is not difficult and is a quick and low-cost process. Sintepon- it is light, elastic and voluminous non-woven fabric, which is used for various purposes and has great functionality along with good thermal insulation properties. Sintepon also goes as a filler in bedding, blankets, clothes, including baby overalls. Sintepon- one of many artificial materials that do not cause allergy to anyone. Therefore, it is also used in the children's industry as a filler for pillows and clothing.

Sintepon is environmentally friendly, does not lend itself to light-zone aging for a long time, resists fungal contamination, does not absorb moisture, is absolutely harmless. Recently, technological developments have led to the emergence of a fundamentally new high-quality synthetic products called holofiber, which in fact are no longer a synthetic winterizer.

Recently, technological developments have led to the emergence of a fundamentally new high-quality synthetic products. holofiber, which in fact is no longer a padding polyester.

Fillerfiber- these are siliconized polyester balls, replacing natural fluff. - one of the most advanced materials used in the production of upholstered furniture... The microstructure of the holofiber is a spatial spiral (as opposed to straight fiber, as in padding polyester), which allows it to perfectly maintain its shape and easily restore it. It is more hygienic than natural and other synthetic fillers, moisture resistant, comfortable and cozy. It is an environmentally friendly, non-allergic and non-toxic product.

Filler fiber is a siliconized fiber that is formed into balls on special equipment. Due to this, in contrast to synthetic winterizer fiber, which being budget option, tightly stuffed into a pillow and after distribution is a tightly stuffed object, a fiber pillow, which is loosely stuffed and allows the fiber to move inside the pillow, creates a unique shape suitable only for you.

Holofiber- material for stuffing pillows in the form of balls-cocoons made of synthetic spiral fibers treated with silicone. The balls are twisted and treated with silicone emulsion fiber. The fibers, intertwining with each other, form a springy structure. This property allows the fiber to quickly regain its shape after crushing, to have a high resistance to retention of its shape over time. The structure of the fiber is soft, breathable, has anti-allergenic properties, does not absorb foreign odors, does not form dust, does not roll into lumps. This filler is non-flammable (melts but does not support combustion).

Fiber fiber has unique qualities:

Long lasting. Finished products using holofiber quickly recover their shape after compression and are especially soft.

Ecologically pure Fiber, a high-tech fluff substitute, does not cause allergies, which is very important for the health of a modern person. Unique filler quality: hypoallergenic. The most important property of fiber filler is its hygiene, the ability not to absorb odors and dust, and as a result, the lack of allergic reactions upon contact.

Orthopedic properties. Particularly valuable quality of fiber filler is manifested in the fact that products from it take the shape of the body. The sophisticated technology of processing the fibers allows them to move independently of each other, so the strong, springy structure does not collapse after prolonged use.

Antistatic properties. The special antistatic treatment of our products is absolutely harmless to health.

Environmental Safety. The environmental friendliness and non-toxicity of fiber has secured its reputation as the most popular filler.

Cozy microclimate. Fiber is composed of many twisted fibers, leaving an air space between them, which allows the filler to "breathe".

Durability. Fiber fiber will not lose volume during operation like cheaper synthetic fillers. A product with such a filler easily returns to its original shape, even after prolonged deformation.

Fiber combines Important consumer properties such as:

1.do not cause allergies - hypoallergenic
2.Anti-static
3.Special thermal insulation and breathability
4.orthopedicity, firmness, elasticity, lightness and bulk
5.Environmental friendliness and durability
6.Is an excellent substitute for natural fillers

Products using holofiber provide maximum convenience and comfort during rest and sleep. Fiber not inferior to down in softness, elasticity and comfort, while absolutely hypoallergenic.

The name of the filler, the cheapest filler in existence that is widely used in furniture production... Today it is the best alternative to natural down. This fiber is treated with a special silicone emulsion, which gives it qualities that make it an artificial fluff substitute. - this is an artificial down - a hollow highly crimped siliconized fiber, 100% polyester, a single component of which in space looks like a spiral spring. Coil length 57 mm. These single components, intertwining with each other, form a strong springy fiber structure. This property allows the synthetic fluff to quickly recover its shape after crushing, to have a high resistance to maintaining its shape over time. The elastic, compressible structure of padding polyester is soft, breathable, which does not create a "greenhouse effect" with prolonged use.

Lightness, softness, elasticity, volume, warmth, environmental friendliness, hypoallergenicity, resistance to washing and dry cleaning has such qualities synthetic fluff... The hypoallergenic and environmental friendliness of synthetic fluff is explained by the absence of substances harmful to human health in its production. In addition, synthetic fluff does not absorb extraneous odors. not afraid of water, getting wet, it still retains heat.

Synthetic down does not roll or fall off, which is not the case with natural down. used as filler for backs, armrests and decorative pillows and other products of upholstered furniture.

A multi-layer, highly elastic, thermo-bonded fabric with vertically directed fibers and aerodynamic layout, which has a low permanent deformation. - white, soft, delicate polymer. It has oriented vertical fibers and therefore works like a spring block. This soft and lush filler in the manufacture of upholstered furniture, they are used as a filler for seats, backs and armrests of sofas and armchairs. Upholstered furniture made using durafil filler has the best consumer characteristics: the seats and backs of sofas have the ability to restore their shape after pressing or weight loading, while maintaining this feature for a long time.
does not cause allergies, does not absorb moisture and does not support combustion. Colonies of dust mites, butterflies, moths and molds do not grow in the filler. Right choice types of flooring materials and their competent combination largely determine the quality and comfort of upholstered furniture. As auxiliary flooring materials used in production: batting, quilted jacket, felt, spunbond and many others.

(type of non-woven fabric) - non-woven fabric obtained by calendering (rolling through hot rollers) polypropylene fibers. V spunbond the seat and back cushions are wrapped, used as a technical fabric. This makes it easy to put on the fabric covers as the fabric slides over the spunbond. During operation spunbond protects soft materials from abrasion and felting, and also allows you to straighten the folds of the cover. Non-woven- non-woven fabric, used to add volume and reinforce the fabric, prevents fabric stretching, reduces creasing, does not change the properties of the fabric, maintains the size and shape of the product during use. From spunbond the inner covers of the back cushions and decorative pillows are sewn. Properties: hypoallergenic (used in the production of hygiene products), non-toxic, tear-resistant, breathable.

Polystyrene balls

Foamedpolystyrene - foam balls , a lightweight cellular material consisting of hydrogen and carbon atoms. They are very mobile and do not form friction with each other, which allows products with this filler to quickly take on a given shape. Is an filling of armchairs and poufs "Bin-Beg".
The cover is packed with many small polystyrene balls. The advantage of the model is lightness, therefore, if necessary, the chair can be easily transferred from room to room. The weight of Bean-Runs ranges from one to five kilograms, depending on the size. Made from durable beautiful fabrics, Bean run are filled with extremely light expanded polystyrene balls... Balls deform over time under the weight of a person - this is a natural process. Each item has a zipper at the bottom so the cover can be washed or added expanded polystyrene filler as it shrinks. The use of a unique technology made it possible to save the products from the accumulation of static charge and rustling, so it is a pleasure to be in them! Bean-Run Filler must be treated with antistatic agents and components to reduce friction (15-20 times) - this is a distinctive characteristic of the filler for poufs. The expanded polystyrene filler does not "creak" and does not accumulate static electricity!

Quilted jackets is cotton wadding covered with fabric on one or both sides and stitched with threads. For the manufacture of quilted jackets, fabrics are used: investment, bag, technical calico, gauze. Quilted jackets quilted with threads on a sewing machine in parallel rows with a certain distance between the rows.

In this way, padded jacket flooring - natural material , is two layers of dense fabric with a 5 cm layer of cotton wool interposed between them. Vatnik- one of the fillers for upholstered furniture. Technologically decking quilted jacket the spring block is covered to give more softness and evenness to the sleeping place of sofas. Vatnik It is widely used in the furniture industry as a cushioning material between other sofa fillings, as well as to increase comfort sleeping place.

- dense non-woven fabric made of felted wool. It is usually made in the form of panels, which have different thicknesses, depending on the purpose.

Voilok- one of the obligatory fillers of upholstered furniture, natural material rolled through hot cylinders on both sides. A hard crust forms on the surface of the material, which makes the material very wear-resistant.

Used by in furniture factories in production upholstered furniture - sofas and armchairs as a cushioning material that serves to neutralize the feeling of springs and protects polyurethane foam - PUF from contact directly with the spring block, prevents it from being pushed through, and also improves the consumer properties of upholstered furniture.

Rubber belts

Most often, a frame is used in furniture upholstery, formed furniture tapes - belts... They are located in the inner part of the seat and backrest, and for greater strength they are intertwined perpendicular to each other. The ribbons are usually very tight and should completely cover the space where the springs or filler will be located during the production or upholstery of furniture.

Rubber belts consist of rubber and synthetic fibers, pressed and glued together. Rubber belts stretched in the form of a grid on wooden frame is a kind of bases sofas and armchairs, chair backs... They are tensioned by a special machine that ensures uniform belt tension. have varying degrees of stretch. Softer belts are used on the backs of upholstered furniture, harder ones are used on the seats of sofas and armchairs.

Plate for transformation mechanisms

are made on special equipment from beech or birch veneer. V last years beech armor is rare. Perhaps the reason is that they are much more expensive than birch ones. Lata is a bent-glued product. Wood layers by special technology glued together, due to which they get a bent product ( latu), which has the ability to bend under the load placed on it. On a metal frame armor are in special plastic lat-holders, which are fastened with brackets over the frame. So armor hold on tightly and do not jump out. also installed as a base for the decking of some models of upholstered furniture, as well as for metal frame mechanisms for transforming sofas and armchairs.

Breakage or deformation (loss of bending) are the main defects of bent-glued elements. Lata breaks, as a rule, in the middle part from loads exceeding the norm. Deformation refers to the process of natural wear and tear during operation. I must say that the more armor is installed, the less each of them is deformed. The damaged plate bends in the opposite direction or becomes straight. The battens cannot be repaired, therefore, in case of breakage or deformation, they are replaced.

"Snake"(spring block snake) - is a type of springs that are used in the furniture industry. "Snake" works in tension and in most cases they are used in the base of soft elements, such as seating furniture... Springs are attached to the frame of the sofa across.

The number of springs placed in furniture depends on its size, as well as on the purpose. Spring snake can be used in beds, couches, mattresses, as well as sofa beds. Such springs can be fastened different ways... The frame of the product, which has a base of these springs, is stable and does not swing. The main advantages of using "Snake" springs are the flat base of the sofa, as well as noiselessness.

Springs of sofas and armchairs made of galvanized metal and shaped like " snakes". In the manufacture of seats, wires of a large cross-section are used, so they are more rigid than on the back. In order for the seat not to" sag ", the spring is well hardened. Snake springs give upholstered furniture - sofa and armchair elasticity and orthopedic effect. They are installed on the frame as a base for soft elements, providing comfort and reliability in operation.

Spring blocks

Spring block is a block of interconnected springs. Each spring in the block operates separately to provide orthopedic effect... Well-known spring block widely used in the manufacture upholstered furniture... It is constantly being modified to improve its qualities. Main function spring block- keep the spine in the correct position. Design features help fulfill this function. Each spring adapts to a specific area of ​​the body, without transmitting displacement waves. Uniqueness independent springs in that they unload the spine as much as possible. Spring block provides free air circulation and a healthy sleep climate. Factory Alina Furniture uses spring blocks "Pocket Springs" and "Bonnel".

Spring sofas Bonnell

Bonnell continuous springs frame is one of the oldest spring frame designs. Bicone spring sofas Bonnell produced by all Russian and many Western firms. They belong to the most common group. It consists of 5 turns bicone springs of high-quality steel wire (diameter 1.6, 1.8, 2.0 or 2.2 mm), interconnected by staples or wire, with special knots for additional rigidity.

Due to progressive elasticity, the spring at the beginning of the load is soft (amenable to compression), and as the load increases, it becomes harder, which creates a relatively uniform distribution of body weight and its convenient location, and also makes it possible to avoid contact of the coils, friction and squeak.

Materials are used as hard (to neutralize the feeling of springs and increase the rigidity of the mattress) and soft (for comfort, air and moisture exchange) fillers: spunbond, felt, polyurethane, batting, etc.

Advantages:

• Spring block Bonnel l withstands heavy loads. For people with a large weight - over 110 kg, mattresses of this series are recommended.
• Long service life (durability) - spring block Bonnell retains its elastic properties for a long time.
• Since the two-cone spring block creates a large volume of air in the mattress, then such a mattress has a good moisture exchange (additional effect of forging bellows).

All materials used for the production of sofas with Bonnell springs are subjected to a series of tests and are made up of high-tech compounds of natural fibers. All products are certified in accordance with hygiene standards.

In the manufacture of products, the world's most advanced technologies for working with spring blocks are used. Upholstered furniture has unique properties: environmental friendliness, elasticity, durability, ergonomics, aesthetics, an unsurpassed feeling of comfort.

Filling of upholstered furniture products meets the world standards of hygiene, treated with antibacterial, antiviral and antifungal composition, hypoallergenic.

Sofas with independent springs

In our time, sofas with independent springs have become very popular.

The coil springs are sewn into separate textile pockets. For pockets, materials are used that allow air and moisture to pass through. Separate pockets with springs are connected to each other. These connections must be flexible so that each particular spring can exhibit its elastic properties.

It is believed that the more springs, the better the anatomical properties of the mattress - in part this is not the case. The optimal number of springs (up to 350 per sq.m.). If there are more springs, then they become too narrow at the same height. Under load, the deformation of the springs occurs not in one plane (up and down), but in two or more planes (bending at the sides) and entail other springs, which negatively affects the anatomical properties of the mattress and its quality.

The frame with barrel springs in the pockets, in contrast to the Bonnell spring frame, has the properties of point elasticity and, therefore, very easily conforms to the shape of the body, i.e. mattresses with such a frame are orthopedic.
However, despite the good flexibility, mattresses with pocket springs should not be used for automatically adjustable bed slats.

The anatomical properties of a mattress are determined by its ability to distribute the load of the body as evenly as possible during sleep, assuming its shape.

Main materials:

• A spring wound from a special grade steel spring wire, hardened with high voltage current. For each spring of the block there is a piece of wire with a length of 110 cm. For the manufacture of 1 m2 of a spring block, 282 m of wire are used.
• Non-woven fabric cover. It is durable, tear-resistant, and has excellent flow and filtration performance. Each spring of the block in a compressed state is in a separate case-pocket, thereby providing the necessary reserve of elasticity, supporting the properties and durability of the spring block.

Purpose:

• Block of independent springs used for the production of orthopedic mattresses. The functional purpose of the block is to support the spine in the correct position. This task is implemented through his design features... Each spring adjusts to a specific area of ​​the body without transmitting displacement waves: that is, if the load is applied to one specific spring, adjacent springs are not compressed. But first of all, independent springs are unique in that they maximally unload the spine.
• Block of independent springs serves as a support for all components of the mattress. Its surface is ideal for adhesion of fillers (eg latex cloth). In addition, such a unit provides free air circulation and takes care of a healthy sleeping climate.
  The durability of the mattress depends on the quality of the block.
• Independent springs come in various heights and diameters, which provides the spring blocks with different properties. Thanks to their increased comfort and multipurpose possibilities, the independent spring units are the product of the future.

Equipment and industrial lines for the production of springs - to familiarize customers with furniture products (note !!! "Alina Furniture" factory is not a manufacturer of springs, but only uses it as an internal filler in the manufacture of upholstered furniture)

Block of independent springs possesses special ergonomic and mechanical properties. It consists of cylindrical, or barrel-shaped, springs, each of which is in a closed pouch and has no metal bundle with the others. Compression of each individual spring in the block occurs independently of the adjacent springs, so the mattress adapts to the shape of your body. The advantages of a mattress with independent springs are obvious. The springs are not attached to each other, so there is no "wave" effect.

A sofa with comfortable filling will not cure back illnesses, but it will help relieve tension and fatigue in the muscles, relieve the spine. The most pronounced orthopedic effect is possessed by sofas with a block of independent springs, which follow the contours of the body and allow the muscles to completely relax due to the even distribution of the load. Block of independent springs The standard configuration consists of insulated coil springs that do not have a rigid metal bond. Due to this, the mattress itself "adjusts" to the shape of your body.

The filling of the manufactured products of upholstered furniture complies with the world standards of hygiene. It is processed with antibacterial, antiviral and antifungal composition, hypoallergenic

In our time, spring blocks and modern materials such as latex, synthetic winterizer, holofiber and polyurethane foam (PPU). Which one should you choose? - a question that arises before every buyer when buying a sofa. This question is especially relevant if the sofa is supposed to be used for sleeping.

Let's compare two options for fillers: spring and springless. Let's take convenience, durability and price as criteria for comparison.

Convenience of sofas with and without springs

This is perhaps the highest priority quality for upholstered furniture. It is very important that during rest the body is as comfortable as possible, so that rest does not turn into a constant search for a more comfortable position, and the rise is not accompanied by complaints of pain in bones and muscles and a bad mood, especially if the sofa is used as a sleeping place.

Spring "filling" of the sofa can be of two types: with independent and dependent (Bonnel) springs. When using dependent springs, the load on the surface of the sofa is unevenly distributed due to the fact that all the springs are connected to each other and, acting on one of them causes a chain reaction. The location of the heaviest part of the body - the pelvis - sags. In this case, the spine occupies an unnatural position for itself. It is simply impossible to fully rest in this position.

Independent springs in the sofa do not depend on each other. Each of them is separated from all others and even packed in a separate bag. Therefore, the load is distributed precisely. The spine takes a natural, most optimal position for itself in the supine position. Rest on such a sofa is very comfortable. And the state of a person after him is cheerful and energetic.

Springless options on the example of the most popular polyurethane foam. This material retains its shape perfectly. It is distinguished by good elasticity and has excellent orthopedic properties, perfectly adapting to the contours of the human body. Sleeping on a sofa with such a "filling" will surely relax and rest perfectly. In addition, the material is hypoallergenic, environmentally friendly and easily restores its original shape.

Conclusion: independent spring blocks and springless filler are equal in the first comparison criterion - convenience, although each person has his own priorities.

Durability of different sofas

When using high-quality polyurethane foam, the sofa will last a very long time, of course, if you do not regularly perform gymnastic jumps on it. In this case, it will lose its elasticity. In addition, PU foam does not attract and does not accumulate dust, it is well ventilated and is completely safe.

Spring blocks are also durable. But with too much use, the springs are more likely to break or sag than PPU. Springs, especially those made of low-quality metal, can begin to creak and peep out, ruining the skin. But, most often, this happens with very cheap furniture, where an insufficient number of intermediate layers are used or their materials are of poor quality.

Conclusion: according to the criterion "durability" the comparison gives approximately equal results.

The price of spring sofas and with polyurethane foam

The price of both spring and non-spring fillers depends on their quality. There is a very high quality PU foam with a long service life and a high degree of comfort. The price for it, of course, is higher than for the material of poor quality, on which pits will soon form.

Spring blocks also differ in quality. Bonnel dependent springs are the cheapest filler, but the convenience of such a sofa leaves much to be desired. Consider whether it is worth saving on quality. Yes, and will it be a savings and not a waste of time?

Conclusion: The technology for the production of polyurethane foam is cheaper and simpler than the technology for the production of springs. So spring sofas, especially with independent springs, are usually somewhat more expensive.

Regardless of which type of sofa you choose, keep in mind that quality sofas, both spring and springless, are more expensive than inferior ones. Whether it is worth saving or preferring the best quality and comfort is up to you. And in our catalog you will find and

Contemporary sofa with spring unit

The filler of upholstered furniture affects its service life and comfort. Therefore, when buying, it is important to consider this parameter. Springs are one of the common fillers. They are divided into several types. Before purchasing, it is important to understand all the intricacies of this issue.

Variety of fillers for upholstered furniture

Which sofa to choose depending on the desired degree of rigidity and the purpose of the furniture

Types of spring blocks in mattresses

Springs have been used for upholstered furniture for a long time. They represent a whole block, fixed on a timber frame. Outer part often wrapped in material.

Spring block maintains the shape of the furniture and resists sagging

In high-quality models, a similar layer of fabric is made under and above the springs. From the listed component parts the reliability of the structure depends.

Each spring is located in a separate pocket made of polyurethane foam and does not depend on the neighboring ones, only the pockets are connected to each other

Spring block for upholstered furniture

The springs act as shock absorbers allowing the structure to be flexible, resilient and soft. They help to avoid subsidence and keep their shape.

Internal section of upholstered furniture with a description of the fillers

Kinds

Springs for the spring block bonnel

Spring block DS (double spring) is designed as an independent spring system "spring in spring"

There are 3 main types, as shown in the table.

A type	Description
Independent	They are distinguished by their reliability. Steel five-turn parts are in fabric covers. Under load, not the entire system is activated, but a separate part of it. Because the spine takes on the natural, correct position... The load is distributed evenly. More often, products with a small diameter, made of thin wire, are used to increase their number. This has a positive effect on the elasticity and density of the structure.
Bonnel	In this case, double-cone, steel are used. They have 4-5 turns and are fastened with a special frame. The block has several frames and is characterized by rigidity and reliability.
Snake	Used for soft substrates. For manufacturing, galvanized steel is used. It is folded with high temperatures. The more bends, the more reliable the structure will be. The name appeared thanks to outward appearance resembling a snake. Fastening in the frame is carried out transversely with steel wire brackets.

Independent springs - each spring in such a block is located in a separate case

Dependent springs - connected to each other using strong metal wire

Snake block - springs run horizontally inside the sofa seat

Advantages and disadvantages

Inner structure of the mattress with independent springs

There are the following benefits.

Impact of spring blocks of dependent and independent springs on the spine

But there are also some disadvantages.

How to choose the right one

A block that will last a long time consists of several layers: a metal frame with springs, an interlayer of dense polyurethane foam and felt

To purchase a reliable and high-quality product, you need to consider a number of characteristics when buying, including the purpose of the sofa and its rigidity. Therefore, it is worth considering the following.

The principle of operation of independent springs eliminates deformation of the surface of the berth, providing the correct anatomical support for the body

The choice will be influenced by the design of the sofa, its dimensions and the transformation mechanism. It should organically fit into the overall interior, not take up too much space and be easy to disassemble. Then it will be convenient to use it.

Diagram of the filling of a sofa with a spring block

Video: Spring block "BONELLE" independent block, snake spring, serpento

How often do you choose upholstered furniture by its appearance, without thinking about what is inside it? But the inner content is of no less importance. The reliability and durability of the seat, back and armrests, as well as the comfort and ease of fit, directly depend on the filler for the sofas. Therefore, you need to approach its choice no less carefully than choosing the color of the upholstery or the shape of the sofa.

Which is better - springs or highly resilient polyurethane foam (PPU)? We tell you about the most popular materials and help you decide which filler is best for your sofa in order to get a comfortable and durable place to relax for years to come.

What is hidden inside: general classification of fillers

There are two large groups fillers for upholstered furniture: with and without springs.

In the first case, on the springs cylindrical or a base made of a spring "snake" several layers of natural or artificial covering material - coconut coir, latex, foam rubber, felt, etc. are laid. Different density of one or another coating and a variety of spring options allow you to create fillings of different degrees of rigidity.

Springless fillers are based on highly elastic polyurethane foam (polyurethane foam, furniture foam rubber) - an inexpensive, but durable and resilient artificial material.

If you look at the cross-sectional drawing of the sofa, you will see that all of its interior filling is stacked on top of each other. This method of styling is commonly referred to as "puff pie": alternating different materialsallows sofas and armchairs to be hard or soft, gives the surface elastic elasticity, airiness and relief, which contributes to a comfortable rest and relieves stress from the spine.

Springs

The spring block is of two types: with dependent ("Bonnel" type) and independent springs. Both options are very durable, provided there are enough interlayers between the unit and the outer upholstery.

A multi-layer cover is a must for any quality spring unit sofa.

Dependent spring block

A classic, time-tested option. Here, all the springs are interconnected by a continuous spiral steel wire. If you press on one spring, the others will immediately connect to it, thereby distributing the load on the entire base. The structure is attached along the perimeter to the edging frame and covered with an intermediate layer of non-woven material.

Furniture filled with dependent springs is cheaper, but it should be remembered that the orthopedic properties of a dependent spring block are lower than that of an independent one.... In this case, the springs do not adjust to the load individually, therefore, if another person sits or lies on the sofa (especially with a greater weight than yours), you can feel how the whole structure bends (the so-calledHammock effect).

Independent spring block

In a block of this type, each spring has its own life "and does not depend on the neighboring ones, which gives the surface a high point elasticity and allows it to better adapt to the contours of the body.

The steel springs placed in separate fabric covers do not creak, do not rub, and in case of breakage are not able to break through the top layer of the filler and the cover.

Spring snake

Attached to a wooden or metal base with a hinge bar or steel brackets, the snake is a simple and inexpensive spring base. And although it is not a full-fledged filler - a layer of polyurethane foam is always laid on top - it is able to withstand heavy loads, does not deform and is very durable.

PPU

Polyurethane foam (polyurethane foam or furniture foam rubber) is an inexpensive and highly elastic furniture filler. Provides a comfortable fit, has good elasticity and is environmentally friendly.

For the base of a sofa with such filling, as a rule, block furniture foam rubber is used, cut and twisted in a certain way. Some models require special blanks of molded polyurethane foam, which is also used as a filler for pillows - the material allows you to keep any given shape.

The filling of sofas with polyurethane foam can be of various brands - standard, high-comfort polyurethane foam, polyurethane foam with memory effect, etc. The higher the properties of the material, the more expensive the sofa will cost to manufacture.

If you love comfort as much as economy- Pay attention to the extra-comfort PPU sofa filler (artificial latex). It is based on especially high elasticity polyurethane foam.

Viscoelastic polyurethane foam is a separate type of polyurethane foam with a unique orthopedic "shape memory" effect. A mattress or pillow filled with this material reacts to pressure and heat by remembering the shape of your body. Press down on the surface with the palm of your hand and release - the dent will disappear very slowly.

Before buying a sofa or mattress, be sure to check the density level of the PU foam.- a seat with an indicator of 28-30 kg / cubic meter will provide not only convenience, but also durability of upholstered furniture elements. At the backdensity should not be lower22-25 kg / cubic meter, and armrests- 20-22 kg / cubic meter

Other materials

Furniture fillers are not limited to foam rubber and springs - other materials are used as additional layers for filling.

Natural latex

The base made of natural latex is often used in expensive upholstered furniture - the material has high elasticity, instantly restores its original shape, is non-toxic, hypoallergenic and has a long service life.

Sintepon

The most inexpensive, but very persistent artificial filler. It creates additional softness and elasticity. Also, the material is not susceptible to the formation of fungus. The main disadvantage is that with regular use it does not hold its shape, characteristic dents and irregularities appear on the surface. In the case of constant use, this material should be considered in combination with polyurethane foam as a flooring layer - its share in the filling is small, but one way or another it is able to improve the shock-absorbing properties of the seat.

Holkon (strutoplast)

A modern nonwoven fabric consisting of an intermediate layer of vertically laid synthetic polyester fiber and two covering layers of dense reinforcing ribbed surfaces. This method of laying allows the mattress or pillow to fall only in the places of pressure and quickly recover its shape.

Holkon is easy to care for, retains heat well, has increased elasticity, is environmentally friendly and does not absorb moisture and odors.

There is no single answer to the question of what is the best filler for the sofa, but you can protect yourself from inconvenience and disappointment by choosing the “filling” for the purpose of the future sofa. So, for a berth, it is better to consider a filler with a more rigid and flexible base (highly elastic polyurethane foam, an independent spring block, natural latex), because Regular rest on an overly soft or crumpled bed can have a negative effect on the spine. But the guest option provides for any content.

Modern sofa manufacturers mainly use two types of fillers for their products: polyurethane foam or spring blocks. Accordingly, when purchasing this piece of furniture, each buyer thinks first of all about what kind of filling is right for him. It should be noted that each of these materials has its own advantages, which means that it can be best used for certain purposes.

So, for example, the spring block is capable of carrying heavy loads, which is perfect for people with a lot of weight. And the layer of batting or spunbond laid on top conceals discomfort from the use of steel wire. Manufacturers, as a rule, talk about the special elastic properties of spring blocks, which allow such a filler to take the shape of a lying person's body, distributing the load on the spine.

Spring block sofa

In fact, the orthopedic properties of the spring blocks are rather weak, because when contracting, each spring pulls the neighboring ones connected to it.

But with all this, the reliable fixation of the springs and the use of technologies that allow increasing the resistance force with increasing load, allows us to talk about the durability of using sofas on a spring basis. At the same time, a lot, of course, depends on the peculiarities of the operation of the furniture. Such a filler is quite durable, but does not withstand large point loads, therefore, if there are small children in the house who like to jump on upholstered furniture, the springs can quickly fail.

Advantages of polyurethane foam as a filler for upholstered furniture

The modern industry uses polymers in a wide variety of applications, from building blocks and insulating car interiors to filling children's toys. This trend did not pass by the furniture production. PPU filler is widely used in the manufacture of upholstered furniture. So what is it about the couch?

Polyurethane foam sheet

Polyurethane foam (also known as polyurethane foam) is a synthetic porous substance that consists of thick-walled cells filled with air. Depending on its characteristics, it can be made in the form of soft and thin sheets (foam rubber) or rather hard and thick plates (PU foam itself).

The advantages of polyurethane foam are its reliability and durability - this material is able to recover its shape more easily than all others, while correct use will extend its service life for many years.

Another advantage is several options for rigidity. Depending on the brand, it can withstand loads from 60 to 100 kg, and the most dense samples, often used in modern furniture, are also suitable for heavier people. Therefore, when choosing such filling as polyurethane foam, it makes sense to additionally clarify the density indicator, which should be over 30 kg / m 3. This information can be obtained by carefully examining the passport of the model you like.

PPU density options

One of the important properties of polyurethane foam is its ability not to accumulate dust and absolute hypoallergenicity. This trait is especially important for people prone to different types household allergies. In addition, during production, it is additionally impregnated with an antifungal and antibacterial composition, which makes PU foam completely harmless to health.

In furniture production, mainly two types of such material are used - cast and block:

• for sofa , filled with block polyurethane foam, the parts are cut from large sheets of different degrees of density and glued in such a way that the top is the most soft material, and the base was more solid;
• cast polyurethane foam is initially in a liquid state, it is cast into molds, from which a solid block emerges under pressure and temperature, which exactly repeats the shape of the necessary parts. This method allows you to achieve a particularly smooth shape of upholstered furniture.

Disadvantages of PPU

The disadvantages of this material are that it cannot stand prolonged exposure to direct sunlight, starting to break and paint. Therefore, manufacturers tend to make covers from opaque materials for parts.

Also, PPU is a combustible material, emitting harmful substances when ignited.

For many buyers who are accustomed to sofas with box springs, products made of dense polyurethane foam may seem unnecessarily tough.

Sofa with PPU filling

The dependence of the cost of the sofa on its "filling"

When choosing fillers for a sofa, you must also pay attention to the cost of various samples: sofas based on polyurethane foam or PU foam have a lower cost due to the production technology.

So, deciding what is better to choose, polyurethane foam or a spring block, it is necessary to determine the parameters of such a choice.

The cost of polyurethane foam is much less, and furniture based on it has more various forms... Moreover, both materials, subject to the rules of operation, are durable and easy to use.

The most good decision will be what is taken on the basis of those characteristics that are important for a particular buyer and depend on the characteristics of the further use of the sofa. The opportunity to test the sofa before buying, sitting on it and making sure that the density of the filler is optimal, and the surface does not have irregularities, will also help in choosing.